lay295
Chat Render randomly crashes
Checklist
- [X] I have checked the issue page for duplicates
- [X] I am running the latest version (download here)
Edition
Command Line Interface
Describe your issue here
This has been happening for the past year now across multiple versions. I use https://github.com/Zibbp/ganymede, which is where I noticed this happening, but the logs below are from running TwitchDownloaderCli directly.
Chatrender will crash and I haven't figured out a predictable pattern to it.
My workaround has been to just keep rerunning chatrender until it eventually succeeds. It usually takes 1-2 additional runs to eventually succeed. Obviously this is a lot of extra time and energy needed.
It happens to about 30-40% of the streams I download.
On Debian 12 on Proxmox, it'll segfault
TwitchDownloaderCLI 1.53.4 Copyright (c) lay295 and contributors [STATUS] - Fetching Images [1/2] [STATUS] - Rendering Video: 0% (0h0m2s Elapsed | 5h25m20s Remaining) [LOG] - No valid typefaces were found for some messages. [STATUS] - Rendering Video: 91% (4h14m49s Elapsed | 0h22m57s Remaining)Segmentation fault
I recently decided to try running it on windows 10 and it produced the following stacktrace: windows stacktrace.txt
99% of the streams I download are Korean or Japanese, but this has happened for all languages(kr, jp, en). Attached a Korean chat produced by ganymede 40830451479_fcf57987-8c5b-11ee-b9ae-0242ac120002-chat-convert.json
I've tested on Intel (i3-6300) and AMD (Ryzen 5 1400). I haven't tried a long term test on bare metal yet, I need to find a machine.
Args used:
-h 1440 -w 340 --framerate 30 --font-size 13
Add any related files or extra information here
No response
How much memory is in the system? I'm wondering if the system is running out of memory when trying to allocate a new bitmap for a frame, resulting in a nullptr read the next time we try to copy from it. That would also explain the inconsistent occurrence.
Upon further inspection, it seems that SkiaSharp would throw if a new bitmap failed to allocate. I hate to say it, but I don't have any clue as to what is causing the segfault.
I've rendered this chat a few times now without issue. If possible, can you upload the chat.json file as well? The one you posted, chat-convert.json, is before it hits TwitchDownloader and I'd like to try with the chat.json file as well. You may have to exec into the container and grab it from /tmp.
